English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/9124
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Clues for the existence of two K-1(1270) resonances

AuthorsGeng, Li Sheng; Oset, Eulogi ; Roca, Luis; Oller, José Antonio
KeywordsChiral perturbation-theory
Axial-vector mesons
Diffractive production
[PACS] Meson-meson interactions (energy ≤ 10 GeV)
[PACS] Other strange mesons
Issue Date22-Jan-2007
PublisherAmerican Physical Society
CitationPhysical Review D 75(1): 014017 (2007)
AbstractThe axial-vector meson K-1(1270) was studied within the chiral unitary approach, where it was shown that it has a two-pole structure. We reanalyze the high-statistics WA3 experiment K(-)p -> K(-)π(+)π(-)p at 63 GeV, which established the existence of both K-1(1270) and K-1(1400), and we show that it clearly favors our two-pole interpretation. We also reanalyze the traditional K-matrix interpretation of the WA3 data and find that the good fit of the data obtained there comes from large cancellations of terms of unclear physical interpretation.
Description13 pages, 7 figures.-- PACS nrs.: 13.75.Lb; 14.40.Ev.-- ISI Article Identifier: 000243896200047.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0610217
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.75.014017
Appears in Collections:(IFIC) Artículos
Files in This Item:
File Description SizeFormat 
Geng_et_al_PRD75_014017_2007.pdf1,53 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.